Canon imagePRESS C800 Service Manual page 31

Canon
• If the TPM setting is activated and the TPM chip fails, the
• Only the Administrator of the machine can back up the TPM key.
• For security reasons, the TPM key can only be backed up once.
• For the backup of the TPM key, it is recommended that a USB
• The TPM seals the hardware components associated with the
b) HDD Password Lock Function
The HDD password lock feature further heightens the confidentiality
of highly sensitive information stored on the hard disk. The password
is managed by the imagePRESS C800/C700 Main Unit. When the
device is turned ON, the password is unlocked.
HDD Lock function prevents the access to the user data but the data
itself still exist on the HDD. Therefore, if the password is revealed,
the data can be exposed. HDD encryption and/or HDD erase option
is recommended for further protection.
Canon imagePRESS C800/C700 Service Guide
Revision 2
IMPORTANT
confidential information stored on the chip can only be recovered
if Canon's service representative replaces the TPM chip and
restores the original TPM key to the new chip. Immediately, back
up the TPM key on a USB memory stick, after the TPM setting is
activated.
Store the USB memory with the backup data in a safe place.
memory stick (supported system file: FAT32) with free space of
10 MB or more is used.
data, and the data cannot be accessed unless the specific TPM
key is issued by the TPM chip. Therefore, setting the TPM mode
to 'On', may affect service procedures and service costs (if not
handled properly). It is strongly recommended that the
Administrator who has access to the TPM key be present for all
service calls to prevent the loss of data and productivity of the
machine.
IMPORTANT
Canon imagePRESS C800/C700 Service Guide
October 2014
Page 25